MCQ PracticeExhaust valve of a 4 stroke engine opens 45 deg before BDC and closes at TDC. Thus, the valve remains open atSubject: AgricultureTopic: Agricultural EngineeringA90°B135°C180°D225°Correct Answer: DPractice QuizBack to MCQsRelated MCQsCurrent flows in a circuit whenEighttenths coulomb passes a point in 4 s. The current in amperes isThe unit of electrical charge is the